html,body{
  margin 0
  padding 0
  width 100%
  height 100%
}
body{
  background-image: url('../images/bg.jpg');
  background-size: cover;
  background-position: center  center;
  font:14px 'Microsoft YaHei';
  color:#4d4d4d;
  overflow: hidden;
  // font-smoothing:antiali
  font-weight: 300;
}
